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Growth and nonvolatile holographic storage properties of Hf:Ce:Cu:LiNbO3 crystals

✍ Scribed by Zhaopeng Xu; Chao Xu; Xuesong Leng; YongZhi Ben; Yan Zhao; Yuheng Xu

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
193 KB
Volume
318
Category
Article
ISSN
0022-0248

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✦ Synopsis

The congruent Ce(0.1%):Cu(0.2%):LN crystals doped with different concentrations of 0, 2.0 and 4.0 mol% HfO 2 were grown by the Czochralski method. Inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and the infrared (IR) spectrum were measured and are discussed in terms of the spectroscopic characterization. The nonvolatile holographic storage properties of Hf:Ce:Cu:LN crystals were experimentally studied using the two-color holographic recording method. The results indicated that the codoping with Hf eliminated undesirable intrinsic traps, which strongly enhanced the charge transition speed. As the doping concentration of Hf increased, the fixed diffraction efficiency decreased, but the holographic response time and photorefractive sensitivity improved.

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## Abstract Originally published Microwave Opt Technol Lett 50: 1693–1695, 2008. Β© 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2481, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23626